In a sign that consumers are more comfortable with online shopping for high-ticket items, retailers Amazon.com Inc. and Blue Nile Inc. are reporting single sales recently of items priced at $100,000 or more.

Amazon reported last week that its highest priced item sold so far this year was a $94,000 pair of diamond earrings. “We’re delighted that more customers are turning to Amazon.com for luxury jewelry shopping,” says Steven Goldsmith, vice president of Amazon’s jewelry section.

Blue Nile Inc., meanwhile, says its highest price for a single item sold so far this holiday shopping season on BlueNile.com was priced at $170,000. Blue Nile’s highest-ever price on a sold item was $250,000 for a diamond engagement ring purchased in September 2004, a spokesman says, adding that Blue Nile routinely sells one or two items a day priced at about $50,000.

Online jewelry sales were selling at a fast pace this year even before the start of the holiday shopping season, according to comScore Networks Inc. Online jewelry sales were up 32% year-over-year through October, to $1.15 billion from $866 million, it says.